RE: Flying Characteristics: Viper Q-500 Pulling up in Turn Number 1:
If your plane is at 90 degrees to the ground and you pull full up and it rolls up out of the turn, you need low (left) wing tip weight.
If it is a small amount you can mix Elevator (master) to Aileron (Slave) to counteract it. That is my preference, but it does add additional drag.